I'm not a big Mariah fan so all my answers are singles so yeah but
Shake It Off, Honey, Emotions
EDIT: OOPS Forgot Emotions existed. Bye It's Like That
Mariah Carey: Vision of Love, Vanishing, All in Your Mind
Emotions: Emotions, If It's Over, So Blessed
Music Box: Never Forget You, Just to Hold You Once Again, All I've Ever Wanted
Daydream: Fantasy, Always Be My Baby, Slipping Away
Butterfly: The Roof, Breakdown, Outside
Rainbow: Heartbreaker, Bliss, Petals
Glitter: Lead the Way, If We, All My Life
Charmbracelet: I Only Wanted, Bringin on the Heartbreak, Through the Rain (Remix)
The Emancipation of Mimi: We Belong Together, Stay the Night, Your Girl
E=MC2: I'll Be Lovin U Long Time, For the Record, I Wish You Well
Memoirs of an Imperfect Angel: Betcha Gon Know, H.A.T.E.U., More Than Just Friends
Christmas: All I Want For Christmas is You, O Holy Night, Chrismtas (Baby Please Come Home)
Overall (most played): Always Be My Baby, We Belong Together, Your Girl
1. Dreamlover
2. Always Be My Baby
3. One Sweet Day
honorable mentions: Vision of Love, If It's Over, Fantasy, Breakdown, Fourth of July, Through the Rain, Lead the Way, We Belong Together, Shake it Off, Mine Again, Love Story, Touch My Body, H.A.T.E.U., #Beautiful